/Engine/Plugins/Animation/ControlRig/Source/ControlRigEditor/Public/ControlRigSpaceChannelCurveModel.h
Retrieve all key attributes that pertain to the specified input key handles
virtual void GetKeyAttributes ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [FKeyHandle](API\Runtime\Engine\Curves\FKeyHandle) > InKeys, [TArrayView](API\Runtime\Core\Containers\TArrayView)< [FKeyAttributes](API\Editor\CurveEditor\FKeyAttributes) > OutAttributes ) const